IN DOCUMENTS OF THIS SECTION the names of delegates to the 3rd Congress appear very frequently. In order not to clutter the text with corresponding explanations, we provide here a list of all participants in the 3rd Congress and their revolutionary pseudonyms encountered in Lenin's papers. The first name is the pseudonym under which the delegate appears in the printed proceedings of the Congress; in bold italics his permanent name, in brackets — the revolutionary pseudonyms encountered in the documents published in this collection. All documents of this section, except for the aforementioned list of Congress members and Lenin's mandate to the Congress, are written in Lenin's hand and are printed from the originals.